Treadmill



FIG. 1 is a perspective view of a treadmill embodying the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top view thereof;

FIG. 7 is a bottom view thereof; and,

FIG. 8 and FIG.9 are perspective views thereof showing alternate position.

The broken lines in the figures illustrate the portions of the treadmill that form no part of the claimed design. 

CLAIM The ornamental design for a treadmill, as shown and described. 